Detailed description of directories, executables and files.



This directory holds the sysName.mst files. Each sysName.mst file is a plain text file and has the following format:

The first line is the IP address of the device that OverTime will use to communicate with the device and identifies the device. This is not user configurable.


Each subsequent line is formatted depending on the collection being monitored.


For I/O collections the format is: Interface# code maximum“title


Interface# is the numeric SNMP interface number (Not user configurable)

Code is an indication of the type of information being collected for this interface (Not user configurable). For I/O, the four possibilities are

0 = this interface reports I/O and Error I/O

1 = this interface reports I/O only

2 = this interface is Cisco Average Busy 5 CPU usage

3 = combine the following interface traffic (used for ISDN B channel combinations)


maximum is the bandwidth limit in bits per second of this interface or 100 for CPU (can be changed by the user).


title is the title for the graph after a leading ‘”’ (can be changed by the user).


For non I/O collections the format is in groups of lines. The first line for the group has the format: MibName code maximum “ylabel”title


MibName is the name of the MIB being collected as found in snmpCol.conf.


Code = –1 for a user define collection and –3 for a PingTime collection.


maximum = the threshold found for this collection and determines at what value in the graph the threshold line will be drawn (can be changed by the user).


“ylabel = the ‘”’ indicates the start of the Y axis label used in the graph (can be changed by the user).


“title = the second ‘”’ indicates the start of the title for this graph (can be changed by the user).


each subsequent line has a configuration for an instance that will be drawn on this graph. An empty line indicates the end of the group. Each of these subsequent lines has the following format: Instance# -2 “legend


Instance# = the SNMP instance for this MIB in this device (Not user configurable).


“legend = The ‘”’ indicates where the legend commences. The legend is used as the graph legend for this particular line (can be changed by the user).





This is the directory that houses other directories that in turn house the RRD data files. The directories in this directory are named after the sysName for the device being collected. Within each sysName directory are RRD files that are called where xxx depends on the collection being done.